package com.guet.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.sql.DataSource;
import java.util.HashMap;

/**
 * @author MicahYin
 * @date 2020/8/7 12:04
 */
@Configuration
public class DruidConfig {
    @Bean
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource druidDataSource(){
        return new DruidDataSource();
    }
    //后台监控: 类似  web.xml
//    因为springBoot内置了servlet容器，所以没有web.xml，替代方法：ServletRegistrationBean
    @Bean
    public ServletRegistrationBean statViewServlet(){
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(new StatViewServlet(), "/druid/*");

        HashMap<String,String> initParameters = new HashMap<>();

        initParameters.put("loginUsername","admin");//登录 key 是固定的  loginUsername  loginPassword
        initParameters.put("loginPassword","123456");
        initParameters.put("allow","");
//        禁止谁访问    initParameters.put("Micah","192.168.1.1");
        bean.setInitParameters(initParameters);//设置初始化参数
        return bean;
    }
//    filter
    @Bean
    public FilterRegistrationBean webStatFilter(){
        FilterRegistrationBean bean = new FilterRegistrationBean();
        bean.setFilter(new WebStatFilter());
        //可以过滤哪些请求呢？
        HashMap<Object, Object> initParameters = new HashMap<>();
        //这些东西不进行统计
        initParameters.put("exclusions","*.js,*.css,/druid/*");
        bean.setInitParameters(initParameters);
        return bean;
    }
}
